We simulate all surfaces because that is part of keeping all clients aware of entire game state so we do not need to transfer anything more than input actions after a player has already joined. Nah, I know. But look: clients don't need to be aware of surfaces they don't actually deal with. If one t...

TL;DR Multithreading splitting by surfaces What? As a software engineer myself, I understand why multithreading for game logic is not a part of Factorio for years: determinism model is good for multiplayer games with large files and lots of activities as it doesn't require constant sending of the w...

Hi! Bilka from mod-making channel at Discord server recommended me to share my feedback at the forum. Tbh, I'm upset with the new design (but this is quite fixable!). Here are screenshots of old and new prototypes hierarchy pages: https://media.discordapp.net/attachments/306402592265732098/115439331...